In grammar, tense is a category that expresses time reference.[1][2] Tenses are usually manifested by the use of specific forms of verbs, particularly in their conjugation patterns.

The main tenses found in many languages include the past, present, and future. Some languages have only two distinct tenses, such as past and nonpast, or future and nonfuture. There are also tenseless languages, like most of the Chinese languages, though they can possess a future and nonfuture system typical of Sino-Tibetan languages.[3] In recent work Maria Bittner and Judith Tonhauser have described the different ways in which tenseless languages nonetheless mark time.[4][5] On the other hand, some languages make finer tense distinctions, such as remote vs recent past, or near vs remote future.

Tenses generally express time relative to the moment of speaking. In some contexts, however, their meaning may be relativized to a point in the past or future which is established in the discourse (the moment being spoken about). This is called relative (as opposed to absolute) tense. Some languages have different verb forms or constructions which manifest relative tense, such as pluperfect ("past-in-the-past") and "future-in-the-past".

Expressions of tense are often closely connected with expressions of the category of aspect; sometimes what are traditionally called tenses (in languages such as Latin) may in modern analysis be regarded as combinations of tense with aspect. Verbs are also often conjugated for mood, and since in many cases the three categories are not manifested separately, some languages may be described in terms of a combined tense–aspect–mood (TAM) system.

Etymology

The English noun tense comes from Old French tens "time" (spelled temps in modern French through deliberate archaization), from Latin tempus, "time".[6] It is not related to the adjective tense, which comes from Latin tensus, the perfect passive participle of tendere, "stretch".[7]

Uses of the term

In modern linguistic theory, tense is understood as a category that expresses (grammaticalizes) time reference; namely one which, using grammatical means, places a state or action in time.[1][2] Nonetheless, in many descriptions of languages, particularly in traditional European grammar, the term "tense" is applied to verb forms or constructions that express not merely position in time, but also additional properties of the state or action – particularly aspectual or modal properties.

The category of aspect expresses how a state or action relates to time – whether it is seen as a complete event, an ongoing or repeated situation, etc. Many languages make a distinction between perfective aspect (denoting complete events) and imperfective aspect (denoting ongoing or repeated situations); some also have other aspects, such as a perfect aspect, denoting a state following a prior event. Some of the traditional "tenses" express time reference together with aspectual information. In Latin and French, for example, the imperfect denotes past time in combination with imperfective aspect, while other verb forms (the Latin perfect, and the French passé composé or passé simple) are used for past time reference with perfective aspect.

The category of mood is used to express modality, which includes such properties as uncertainty, evidentiality, and obligation. Commonly encountered moods include the indicative, subjunctive, and conditional. Mood can be bound up with tense, aspect, or both, in particular verb forms. Hence, certain languages are sometimes analysed as having a single tense–aspect–mood (TAM) system, without separate manifestation of the three categories.

The term tense, then, particularly in less formal contexts, is sometimes used to denote any combination of tense proper, aspect, and mood. As regards English, there are many verb forms and constructions which combine time reference with continuous and/or perfect aspect, and with indicative, subjunctive or conditional mood. Particularly in some English language teaching materials, some or all of these forms can be referred to simply as tenses (see below).

Particular tense forms need not always carry their basic time-referential meaning in every case. For instance, the historical present is a use of the present tense to refer to past events. The phenomenon of fake tense is common crosslinguistically as a means of marking counterfactuality in conditionals and wishes.[8][9]

Possible tenses

Not all languages have tense: tenseless languages include Chinese and Dyirbal.[10]: 50–53  Some languages have all three basic tenses (the past, present, and future), while others have only two: some have past and nonpast tenses, the latter covering both present and future times (as in Arabic, Japanese, and, in some analyses, English),[11][12] whereas others such as Greenlandic, Quechua, and Nivkh have future and nonfuture.[4][13] Some languages have four or more tenses, making finer distinctions either in the past (e.g. remote vs. recent past) or in the future (e.g. near vs. remote future). The six-tense language Kalaw Lagaw Ya of Australia has the remote past, the recent past, the today past, the present, the today/near future and the remote future. Some languages, like the Amazonian Cubeo language, have a historical past tense, used for events perceived as historical.[14]

Tenses that refer specifically to "today" are called hodiernal tenses; these can be either past or future. Apart from Kalaw Lagaw Ya, another language which features such tenses is Mwera, a Bantu language of Tanzania. It is also suggested that in 17th-century French, the passé composé served as a hodiernal past.[15] Tenses that contrast with hodiernals, by referring to the past before today or the future after today, are called pre-hodiernal and post-hodiernal respectively. Some languages also have a crastinal tense, a future tense referring specifically to tomorrow (found in some Bantu languages); or a hesternal tense, a past tense referring specifically to yesterday[16] (although this name is also sometimes used to mean pre-hodiernal).[17] A tense for after tomorrow is thus called post-crastinal, and one for before yesterday is called pre-hesternal.

Another tense found in some languages, including Luganda, is the persistive tense, used to indicate that a state or ongoing action is still the case (or, in the negative, is no longer the case). Luganda also has tenses meaning "so far" and "not yet".

Some languages have special tense forms that are used to express relative tense. Tenses that refer to the past relative to the time under consideration are called anterior; these include the pluperfect (for the past relative to a past time) and the future perfect (for the past relative to a future time). Similarly, posterior tenses refer to the future relative to the time under consideration, as with the English "future-in-the-past": (he said that) he would go. Relative tense forms are also sometimes analysed as combinations of tense with aspect: the perfect aspect in the anterior case, or the prospective aspect in the posterior case.

Some languages have cyclic tense systems. This is a form of temporal marking where tense is given relative to a reference point or reference span. In Burarra, for example, events that occurred earlier on the day of speaking are marked with the same verb forms as events that happened in the far past, while events that happened yesterday (compared to the moment of speech) are marked with the same forms as events in the present. This can be thought of as a system where events are marked as prior or contemporaneous to points of reference on a time line.[18]

Tense marking

Morphology of tense

Tense is normally indicated by the use of a particular verb form – either an inflected form of the main verb, or a multi-word construction, or both in combination. Inflection may involve the use of affixes, such as the -ed ending that marks the past tense of English regular verbs, but can also entail stem modifications, such as ablaut, as found as in the strong verbs in English and other Germanic languages, or reduplication. Multi-word tense constructions often involve auxiliary verbs or clitics. Examples which combine both types of tense marking include the French passé composé, which has an auxiliary verb together with the inflected past participle form of the main verb; and the Irish past tense, where the proclitic do (in various surface forms) appears in conjunction with the affixed or ablaut-modified past tense form of the main verb.

As has already been mentioned, indications of tense are often bound up with indications of other verbal categories, such as aspect and mood. The conjugation patterns of verbs often also reflect agreement with categories pertaining to the subject, such as person, number and gender. It is consequently not always possible to identify elements that mark any specific category, such as tense, separately from the others.

A few languages have been shown to mark tense information (as well as aspect and mood) on nouns. This may be called nominal TAM.[19]

Languages that do not have grammatical tense, such as most Sinitic languages, express time reference chiefly by lexical means – through adverbials, time phrases, and so on. (The same is done in tensed languages, to supplement or reinforce the time information conveyed by the choice of tense.) Time information is also sometimes conveyed as a secondary feature by markers of other categories, as with the aspect markers 了 le and 過 guò, which in most cases place an action in past time. However, much time information is conveyed implicitly by context – it is therefore not always necessary, when translating from a tensed to a tenseless language, say, to express explicitly in the target language all of the information conveyed by the tenses in the source.

Syntax of tense

The syntactic properties of tense have figured prominently in formal analyses of how tense-marking interacts with word order. Some languages (such as French) allow an adverb (Adv) to intervene between a tense-marked verb (V) and its direct object (O); in other words, they permit [Verb-Adverb-Object] ordering. In contrast, other languages (such as English) do not allow the adverb to intervene between the verb and its direct object, and require [Adverb-Verb-Object] ordering.

Tense in syntax is represented by the category label T, which is the head of a TP (tense phrase).

Tenseless language

In linguistics, a tenseless language is a language that does not have a grammatical category of tense. Tenseless languages can and do refer to time, but they do so using lexical items such as adverbs or verbs, or by using combinations of aspect, mood, and words that establish time reference.[20] Examples of tenseless languages are Burmese, Dyirbal,[21]: 50–53  most varieties of Chinese, Malay (including Indonesian), Thai, Maya (linguistic nomenclature: "Yukatek Maya"), Vietnamese and in some analyses Greenlandic[22] (Kalaallisut) and Guaraní.[23]

In particular languages

Latin

Latin is traditionally described as having six verb paradigms for tense (the Latin for "tense" being tempus, plural tempora):

Imperfect verbs represent a past process combined with imperfective, that is, they stand for an ongoing past action or state at a past point in time (see secondary present). They can also represent habitual actions (see Latin tenses with modality). In contrast, perfect verbs represent completed actions. Like the imperfect, the pluperfect, the perfect and the future perfect can realise relative tenses, standing for events that are past at the time of another event (see secondary past).

Latin verbs are inflected for tense and aspect together with mood (indicative, subjunctive, infinitive, and imperative) and voice (active or passive). Most verbs can be built by selecting a verb stem and adapting them to endings. Endings may vary according to the speech role, the number and the gender of the subject or an object. Sometimes, verb groups function as a unit and supplement inflection for tense (see Latin periphrases). For details on verb structure, see Latin tenses and Latin conjugation.

Ancient Greek

The paradigms for tenses in Ancient Greek are similar to the ones in Latin, but with a three-way aspect contrast in the past: the aorist, the perfect and the imperfect. Both aorist and imperfect verbs can represent a past event: through contrast, the imperfect verb implies a longer duration ('ate' vs 'ate for a long time'). The aorist participle represents the first event of a two-event sequence and the present participle represents an ongoing event at the time of another event.[24] Perfect verbs stood for past affecting actions if the result was still present (e.g. "I have found it") or for present states resulting from a past event (e.g. "I remember"). For further details see Ancient Greek verbs.

The study of modern languages has been greatly influenced by the grammar of the Classical languages, since early grammarians, often monks, had no other reference point to describe their language. Latin terminology is often used to describe modern languages, sometimes with a change of meaning, as with the application of "perfect" to forms in English that do not necessarily have perfective meaning, or the words Imperfekt and Perfekt to German past tense forms that mostly lack any relationship to the aspects implied by those terms.

English

English has only two morphological tenses: the present (or non-past), as in he goes, and the past (or preterite), as in he went.[25] The non-past usually references the present, but sometimes references the future (as in the bus leaves tomorrow). In special uses such as the historical present it can talk about the past as well. These morphological tenses are marked either with a suffix (walk(s) ~ walked) or with ablaut (sing(s) ~ sang).

In some contexts, particularly in English language teaching, various tense–aspect combinations are referred to loosely as tenses.[26] Similarly, the term "future tense" is sometimes loosely applied to cases where modals such as will are used to talk about future points in time.

Other Indo-European languages

Proto-Indo-European verbs had present, perfect (stative), imperfect and aorist forms – these can be considered as representing two tenses (present and past) with different aspects. Most languages in the Indo-European family have developed systems either with two morphological tenses (present or "non-past", and past) or with three (present, past and future). The tenses often form part of entangled tense–aspect–mood conjugation systems. Additional tenses, tense–aspect combinations, etc. can be provided by compound constructions containing auxiliary verbs.

The Germanic languages (which include English) have present (non-past) and past tenses formed morphologically, with future and other additional forms made using auxiliaries. In standard German, the compound past (Perfekt) has replaced the simple morphological past in most contexts.

The Romance languages (descendants of Latin) have past, present and future morphological tenses, with additional aspectual distinction in the past. French is an example of a language where, as in German, the simple morphological perfective past (passé simple) has mostly given way to a compound form (passé composé).

Irish, a Celtic language, has past, present and future tenses (see Irish conjugation). The past contrasts perfective and imperfective aspect, and some verbs retain such a contrast in the present. Classical Irish had a three-way aspectual contrast of simple–perfective–imperfective in the past and present tenses. Modern Scottish Gaelic on the other hand only has past, non-past and 'indefinite', and, in the case of the verb 'be' (including its use as an auxiliary), also present tense.

Persian, an Indo-Iranian language, has past and non-past forms, with additional aspectual distinctions. Future can be expressed using an auxiliary, but almost never in non-formal context. Colloquially the perfect suffix -e can be added to past tenses to indicate that an action is speculative or reported (e.g. "it seems that he was doing", "they say that he was doing"). A similar feature is found in Turkish. (For details, see Persian verbs.)

Hindustani (Hindi and Urdu), an Indo-Aryan language, has indicative perfect past and indicative future forms, while the indicative present and indicative imperfect past conjugations exist only for the verb honā (to be). The indicative future is constructed using the future subjunctive conjugations (which used to be the indicative present conjugations in older forms of Hind-Urdu) by adding a future future suffix -gā that declines for gender and the number of the noun that the pronoun refes to. The forms of gā are derived from the perfective participle forms of the verb "to go," jāna. The conjugations of the indicative perfect past and the indicative imperfect past are derived from participles (just like the past tense formation in Slavic languages) and hence they agree with the grammatical number and the gender of noun which the pronoun refers to and not the pronoun itself. The perfect past doubles as the perfective aspect participle and the imperfect past conjugations act as the copula to mark imperfect past when used with the aspectual participles. Hindi-Urdu has an overtly marked tense-aspect-mood system. Periphrastic Hindi-Urdu verb forms (aspectual verb forms) consist of two elements, the first of these two elements is the aspect marker and the second element (the copula) is the common tense-mood marker. Hindi-Urdu has 3 grammatical aspectsː Habitual, Perfective, and Progressive; and 5 grammatical moodsː Indicative, Presumptive, Subjunctive, Contrafactual, and Imperative.[27] (Seeː Hindi verbs)

In the Slavic languages, verbs are intrinsically perfective or imperfective. In Russian and some other languages in the group, perfective verbs have past and "future tenses", while imperfective verbs have past, present and "future", the imperfective "future" being a compound tense in most cases. The "future tense" of perfective verbs is formed in the same way as the present tense of imperfective verbs. However, in South Slavic languages, there may be a greater variety of forms – Bulgarian, for example, has present, past (both "imperfect" and "aorist") and "future tenses", for both perfective and imperfective verbs, as well as perfect forms made with an auxiliary (see Bulgarian verbs). However it doesn't have real future tense, because the future tense is formed by the shortened version of the present of the verb hteti (ще) and it just adds present tense forms of person suffixes: -m (I), -š (you), -ø (he,she,it), -me (we), -te (you, plural), -t (they).

Other languages

Finnish and Hungarian, both members of the Uralic language family, have morphological present (non-past) and past tenses. The Hungarian verb van ("to be") also has a future form.

Turkish verbs conjugate for past, present and future, with a variety of aspects and moods.

Arabic verbs have past and non-past; future can be indicated by a prefix.

Korean verbs have a variety of affixed forms which can be described as representing present, past and future tenses, although they can alternatively be considered to be aspectual. Similarly, Japanese verbs are described as having present and past tenses, although they may be analysed as aspects. Some Wu Chinese languages, such as Shanghainese, use grammatical particles to mark some tenses.[28] Other Chinese languages and many other East Asian languages generally lack inflection and are considered to be tenseless languages, although they often have aspect markers which convey certain information about time reference.

For examples of languages with a greater variety of tenses, see the section on possible tenses, above. Fuller information on tense formation and usage in particular languages can be found in the articles on those languages and their grammars.

Austronesian languages

Rapa

Rapa is the French Polynesian language of the island of Rapa Iti.[29] Verbs in the indigenous Old Rapa occur with a marker known as TAM which stands for tense, aspect, or mood which can be followed by directional particles or deictic particles. Of the markers there are three tense markers called: Imperfective, Progressive, and Perfective. Which simply mean, Before, Currently, and After.[29] However, specific TAM markers and the type of deictic or directional particle that follows determine and denote different types of meanings in terms of tenses.

Imperfective: denotes actions that have not occurred yet but will occur and expressed by TAM e.[29]

ex:

e

IPFV

naku

come

mai

DIR

te

INDEF

'āikete

teacher

anana'i

tomorrow

e naku mai te 'āikete anana'i

IPFV come DIR INDEF teacher tomorrow

'The teacher is coming tomorrow.'

ex:

e

IPFV

mānea

pretty

tō

DEF

pē'ā

woman

ra

DEIC

e mānea tō pē'ā ra

IPFV pretty DEF woman DEIC

'That woman is beautiful.'

[29]

Progressive: Also expressed by TAM e and denotes actions that are currently happening when used with deictic na, and denotes actions that was just witnessed but still currently happening when used with deictic ra.[29]

ex:

e

IPFV

'āikete

learn

na

DEIC

'ōna

3S

i

ACC

te

INDEF

tamariki

child/children

e 'āikete na 'ōna i te tamariki

IPFV learn DEIC 3S ACC INDEF child/children

'He is teaching some children.'

ex:

e

IPFV

kai

eat

na

DEIC

ou

1S

i

ACC

kota'i

one

kororio

small

eika

fish

e kai na ou i kota'i kororio eika

IPFV eat DEIC 1S ACC one small fish

'I am eating a small fish.'

ex:

e

IPFV

tunu

cook

na

DEIC

ou

1S

i

ACC

te

INDEF

mīkaka

taro

tonga

all

te

INDEF

pōpongi

morning

e tunu na ou i te mīkaka tonga te pōpongi

IPFV cook DEIC 1S ACC INDEF taro all INDEF morning

'I cook taro every morning.'

ex:

e

IPFV

kaikai

eat.continuously

ra

DEIC

te

INDEF

kurī

dog

i

ACC

te

INDEF

moa

chicken

e kaikai ra te kurī i te moa

IPFV eat.continuously DEIC INDEF dog ACC INDEF chicken

'The dog is eating a chicken.'

ex:

e

IPFV

mate

die

atu

DIR

ra

DEIC

'ōna

3S

e mate atu ra 'ōna

IPFV die DIR DEIC 3S

'She has just died.'

[29]

Perfective: denotes actions that have already occurred or have finished and is marked by TAM ka.[29]

ex:

ka

PFV

ngurunguru

growl

te

INDEF

kurī

dog

ka ngurunguru te kurī

PFV growl INDEF dog

'A dog growled.'

ex:

ka

PFV

tākave

kill

tō

DEF

tangata

man

i

ACC

te

INDEF

mango

shark

ka tākave tō tangata i te mango

PFV kill DEF man ACC INDEF shark

'The man killed the shark.'

ex:

ka

PFV

tunu

cook

na

DEIC

ou

1S

i

ACC

te

INDEF

mīkaka

taro

tonga

all

te

INDEF

pōpongi

morning

ka tunu na ou i te mīkaka tonga te pōpongi

PFV cook DEIC 1S ACC INDEF taro all INDEF morning

'I used to cook taro every morning'

[29]

In Old Rapa there are also other types of tense markers known as Past, Imperative, and Subjunctive.

Past

TAM i marks past action. It is rarely used as a matrix TAM and is more frequently observed in past embedded clauses[29]

ex:

i

PST

komo

sleep

mātou

1PL.EXCL

i komo mātou

PST sleep 1PL.EXCL

'We slept.'

ex:

e

IPFV

a'a

what

koe

2S

i

PST

'aka-ineine

CAUS-ready

e a'a koe i 'aka-ineine

IPFV what 2S PST CAUS-ready

'What did you prepare?'

Imperative

The imperative is marked in Old Rapa by TAM a. A second person subject is implied by the direct command of the imperative.[29]

ex:

a

IMP

naku

come

mai

DIR

a naku mai

IMP come DIR

'Come here.'

ex:

a

IMP

kai

eat

tā-koe

INDEF.PossA-2S

eika

fish

a kai tā-koe eika

IMP eat INDEF.PossA-2S fish

'Eat your fish.'

For a more polite form rather than a straightforward command imperative TAM a is used with adverbial kānei. Kānei is only shown to be used in imperative structures and was translated by the french as "please".

ex:

a

IMP

rave

take

mai

DIR

kānei

PREC

tō

DEF

mea

thing

a rave mai kānei tō mea

IMP take DIR PREC DEF thing

'Please take the thing.'

ex:

a

IMP

omono

dress

kānei

PREC

koe

2S

tō

DEF

ka'u

clothing

ra

DEIC

a omono kānei koe tō ka'u ra

IMP dress PREC 2S DEF clothing DEIC

'Please dress yourself in those clothes.'

It is also used in a more impersonal form. For example, how you would speak toward a pesky neighbor.

ex:

a

IMP

naku

go

kānei

PREC

a naku kānei

IMP go PREC

'Please leave now!'

Subjunctive

The subjunctive in Old Rapa is marked by kia and can also be used in expressions of desire[29]

ex:

kia

SBJV

naku

come

ou

1S

i

PREP

te

INDEF

'are

house

e

IPFV

kaikai

eat.continuously

ou

1S

kia naku ou i te 'are e kaikai ou

SBJV come 1S PREP INDEF house IPFV eat.continuously 1S

'When I get to the house, I will eat.'

ex:

kia

SBJV

rekareka

happy

kōrua

2DU

kia rekareka kōrua

SBJV happy 2DU

'May you two be happy.'

Tokelau

The Tokelauan language is a tenseless language. The language uses the same words for all three tenses; the phrase E liliu mai au i te Aho Tōnai literally translates to Come back / me / on Saturday, but the translation becomes 'I am coming back on Saturday'.[30]

Wuvulu-Aua

Wuvulu-Aua does not have an explicit tense, but rather tense is conveyed by mood, aspect markers, and time phrases. Wuvulu speakers use a realis mood to convey past tense as speakers can be certain about events that have occurred.[31] : 89  In some cases, realis mood is used to convey present tense — often to indicate a state of being. Wuvulu speakers use an irrealis mood to convey future tense.[31]: 90  Tense in Wuvulu-Aua may also be implied by using time adverbials and aspectual markings. Wuvulu contains three verbal markers to indicate sequence of events. The preverbal adverbial loʔo 'first' indicates the verb occurs before any other. The postverbal morpheme liai and linia are the respective intransitive and transitive suffixes indicating a repeated action. The postverbal morpheme li and liria are the respective intransitive and transitive suffixes indicating a completed action.[31]: 91 

Mortlockese

Mortlockese uses tense markers such as mii and to denote the present tense state of a subject, aa to denote a present tense state that an object has changed to from a different, past state, kɞ to describe something that has already been completed, pɞ and lɛ to denote future tense, pʷapʷ to denote a possible action or state in future tense, and sæn/mwo for something that has not happened yet. Each of these markers is used in conjunction with the subject proclitics except for the markers aa and mii. Additionally, the marker mii can be used with any type of intransitive verb.[32]

See also

References

  1. 1 2 Fabricius-Hansen, Catherine (2006). "Tense". In Brown, E.K.; Anderson, A. (eds.). Encyclopedia of Language and Linguistics (2nd ed.). Boston: Elsevier. pp. 566–573.
  2. 1 2 Comrie, Bernard (1976). Aspect: An Introduction to the Study of Verbal Aspect and Related Problems (Cambridge Textbooks in Linguistics). Cambridge: Cambridge University Press. p. 6. ISBN 978-0521290456. the semantic concept of time reference (absolute or relative), ... may be grammaticalized in a language, i.e. a language may have a grammatical category that expresses time reference, in which case we say that the language has tenses. Some languages lack tense, i.e. do not have grammatical time reference, though probably all languages can lexicalize time reference, i.e. have temporal adverbials that locate situations in time.
  3. ↑ Huang, Nick (2015). "On syntactic tense in Mandarin Chinese". In Tao, Hongyin (ed.). Proceedings of the 27th North American Conference on Chinese Linguistics (PDF). Vol. 2. Los Angeles: UCLA. pp. 406–423. Archived from the original (PDF) on 2017-10-11. Retrieved 2017-01-08.
  4. 1 2 Bittner, Maria (2014). Temporality: Universals and Variation. Wiley-Blackwell. ISBN 9781405190404.
  5. ↑ Tonhauser, Judith (January 2015). "Cross-Linguistic Temporal Reference". Annual Review of Linguistics. 1 (1): 129–154. doi:10.1146/annurev-linguist-030514-124923. ISSN 2333-9683. Retrieved 16 July 2021.
  6. ↑ tempus. Charlton T. Lewis and Charles Short. A Latin Dictionary on Perseus Project.
  7. ↑ Harper, Douglas. "tense". Online Etymology Dictionary.
  8. ↑ Iatridou, Sabine (2000). "The grammatical ingredients of counterfactuality" (PDF). Linguistic Inquiry. 31 (2): 231–270. doi:10.1162/002438900554352. S2CID 57570935. Archived (PDF) from the original on 2018-07-24.
  9. ↑ von Fintel, Kai; Iatridou, Sabine (2020). Prolegomena to a Theory of X-Marking Archived 2020-07-15 at the Wayback Machine. Manuscript.
  10. ↑ Comrie, Bernard (1985). Tense. Cambridge University Press. ISBN 0-521-28138-5.
  11. ↑ Kosur, Heather Marie (November 18, 2021). A Form-Function Description of the Grammar of the Modern English Language: Book 1 (Level 7). Illinois: Rock Pickle Publishing. pp. 80–88, 258–268. ISBN 979-8769812316.
  12. ↑ Kosur, Heather Marie (November 18, 2021). A Form-Function Description of the Grammar of the Modern English Language: Book 2 (Level 8). Illinois: Rock Pickle Publishing. pp. 21–25. ISBN 979-8769826191.
  13. ↑ Nedialkov, Vladimir P.; Otaina, G. A.; Geniushene, E. S.; Gruzdeva, Ekaterina (2013). Syntax of the Nivkh language: The Amur dialect. Amsterdam: John Benjamins Pub. Company.
  14. ↑ Morse, Nancy L.; Maxwell, Michael B. (1999). "Cubeo grammar". Studies in the languages of Colombia 5. Arlington, TX: The Summer Institute of Linguistics and The University of Texas at Arlington. p. 45.
  15. ↑ Bybee, Joan; Perkins, Revere; Pagliuca, William (1994). The Evolution of Grammar: Tense, Aspect, and Modality in the Languages of the World. Chicago: University of Chicago Press. p. 101.
  16. ↑ Nettle, Daniel (January 1, 1998). The Fyem language of northern Nigeria (Languages of the world). LINCOM Europa.
  17. ↑ Stevick, Earl W. (1971). Adapting and writing language lessons (PDF). Washington, DC: U.S. Foreign Service Institute. p. 302. Archived (PDF) from the original on 2021-07-17. Retrieved 17 July 2021.
  18. ↑ Green, Rebecca (1987). A sketch grammar of Burarra (Honours thesis). Canberra: Australian National University. doi:10.25911/5d778709e1631. hdl:1885/109283. Retrieved 17 July 2021.
  19. ↑ Nordlinger, Rachel; Sadler, Louisa (2000). "Tense as a Nominal Category". In Butt, Miriam; King, Tracy Holloway (eds.). Proceedings of the LFG 00 Conference University of California, Berkeley (PDF). Berkeley: CSLI Publications. pp. 196–214. Archived (PDF) from the original on 2017-02-16. Retrieved 17 July 2021.
  20. ↑ Bittner, Maria (2014). Temporality: Universals and Variation. John Wiley & Sons. ISBN 978-1-4051-9040-4.
  21. ↑ Comrie, Bernard (1985). Tense. Cambridge University Press. ISBN 0-521-28138-5.
  22. ↑ Bittner, Maria (2005). "Future discourse in a tenseless language". Journal of Semantics. 12 (4): 339–388. doi:10.1093/jos/ffh029.
  23. ↑ Tonhauser, Judith (2011). "Temporal reference in Paraguayan Guaraní, a tenseless language". Linguistics and Philosophy. 34 (3): 257–303. doi:10.1007/s10988-011-9097-2. S2CID 62125736.
  24. ↑ Daniel Couto-Vale, 'Report and Taxis in Herodotus’s Histories: a systemic- functional approach to the description of Ancient Ionic Greek', Nuntius Antiquus, v. 11, n. 1, p. 33-62, 2015
  25. ↑ Huddleston, Rodney; Pullum, Geoffrey K. (15 April 2002). The Cambridge Grammar of the English Language. Cambridge: Cambridge University Press. p. 51. ISBN 978-0-521-43146-0. Retrieved 10 February 2015.
  26. ↑ Penston, Tony (2005). A Concise Grammar for English Language Teachers. TP Publications. p. 17.
  27. ↑ VAN OLPHEN, HERMAN (1975). "Aspect, Tense, and Mood in the Hindi Verb". Indo-Iranian Journal. 16 (4): 284–301. doi:10.1163/000000075791615397. ISSN 0019-7246. JSTOR 24651488. S2CID 161530848.
  28. ↑ Qian, Nairong (錢乃榮) (2010). 《從〈滬語便商〉所見的老上海話時態》 (Tenses and Aspects? Old Shanghainese as Found in the Book Huyu Bian Shang). Shanghai: The Chinese University of Hong Kong Press.
  29. 1 2 3 4 5 6 7 8 9 10 11 Walworth, Mary E. (2015). The Language of Rapa Iti: Description of a Language In Change. Diss (PDF). Honolulu: U of Hawaii at Manoa. Archived (PDF) from the original on 2015-08-25. Retrieved 17 July 2021.
  30. ↑ "Tau Gana Tokelau" (PDF). www.learntokelau.co.nz (1st ed.). New Zealand: Ministry of Pacific Island Affairs. 2017. Archived (PDF) from the original on 2017-03-03.
  31. 1 2 3 Hafford, James A (2014). Wuvulu Grammar and Vocabulary (PDF). Archived (PDF) from the original on 2017-02-11. Retrieved 6 March 2017.
  32. ↑ Odango, Emerson Lopez (May 2015). Afféú Fangani 'Join Together': A Morphophonemic Analysis of Possessive Suffix Paradigms and A Discourse-Based Ethnography of the Elicitation Session in Pakin Lukunosh Mortlockese (PDF). University of Hawaii at Manoa Dissertation. Archived (PDF) from the original on 2015-08-25.

Further reading

  • "What Are Verb Tenses?". Oxford Living Dictionaries. Oxford University Press. Archived from the original on October 23, 2016. Retrieved 2017-01-25.
  • Guillaume, Gustave (1929). Temps et Verbe : théorie des aspects, des modes et des temps. Paris: H. Champion.
  • Hopper, Paul J., ed. (1982). Tense–Aspect: Between Semantics and Pragmatics. Amsterdam: Benjamins. ISBN 9789027228659.
  • Smith, Carlota S. (1997). The Parameter of Aspect. Studies in Linguistics and Philosophy. Vol. 43. Dordrecht: Kluwer. doi:10.1007/978-94-011-5606-6. ISBN 978-0-7923-4659-3.
  • Tedeschi, Philip; Zaenen, Anne, eds. (1981). Tense and Aspect. Syntax and Semantics 14. New York: Academic Press. ISBN 0126135142. OCLC 7709091.
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